In this paper an ongoing modeling study to better understand the pre-genesis processes in tropical cloud clusters is described. The model used to facilitate this process is the Weather Research and Forecasting (WRF) model developed at the National Center for Atmospheric Research. While several recent tropical cyclogenesis studies have utilized simulations under idealized environmental conditions, this study analyzes the processes leading to genesis for several real-life cases. In this paper we present an analysis of the convective structure and microphysical evolution of the pre-genesis cloud clusters from two of these case studies. Even though the pre-genesis environments differ somewhat between simulations, striking similarities exist in the early convective structure as convective bursts appear to precede genesis in each simulation. Our findings suggest that the stratiform precipitation regions that develop after the pre-genesis convection play a significant role in preconditioning the atmosphere for genesis by concentrating mid-level potential vorticity regardless of what the background, large-scale conditions are.